| 摘要 |
PURPOSE:To stably and automatically discriminate and judge specific pictures with high accuracy. CONSTITUTION:In a copying machine for printing a specific pattern on a specific original or the like by almost-hyaline infrared fluorescent coating material and reading and recognizing only the pattern printed on a copying machine side, recognition sequence for recognizing the pattern and reading sequence for copying the original are performed separately. In the recognition sequence, a shading correction processing is performed by data obtained by illuminating a first shading correction plate 641 suitable for a reading system by infrared light. In the reading sequence, the shading correction processing is performed by the data obtained by illuminating a second shading correction plate 640 suitable for the reading system by visible light. |
